/*#include<stdio.h>
#pragma warning(disable:4996)
int main()
{

	int score[3] = { 0 };
	while (scanf("%d %d %d", &score[0], &score[1], &score[2]) != EOF)
	{
		int max = 0;
		int i = 0;
		for (i = 0; i <= 2; i++)
		{
			if (score[i] > max);
			max = score[i];
		}
		printf("%d", max);
	}
	return 0;
}*/





#include<stdio.h>
int main()
{
	char ch = 0;
	char arr[] = "AEIOUaeiou";
	while ((ch = getchar()) != EOF)//while(scanf("%c",&ch)!=EOF)
	{
		int i;
		for (i = 0; i <= 9; i++)
		{
			if (ch == arr[i])
			{
				printf("Vowel\n");
				break;
			}
		}
		if (i == 10)
			printf("Consonant\n");
		getchar();
	}
	return 0;
}

#include<stdio.h>

int main()
{
	while ((ch = getchar()) != EOF)
	{
		if (islower(ch))
		{
			printf("%c\n", toupper(ch));
		else
		{
			printf("%c\n", tolower(ch))
		}
		getchar();
		}
	}
	return 0;
}








